Question

The cost of a jacket increased from $50.00 to $59.00. What is the percentage increase of the cost of the jacket?
A.
1.8%
B.
9%
C.
82%
D.
18%

Answer 1

To calculate the percentage increase of the cost of the jacket, you can use the formula:

\[
\text{Percentage Increase} = \left( \frac{\text{New Price} - \text{Old Price}}{\text{Old Price}} \right) \times 100
\]

In this case, the old price of the jacket is $50.00 and the new price is $59.00.

1. Calculate the increase in price:
\[
\text{Increase} = 59.00 - 50.00 = 9.00
\]

2. Substitute the values into the formula:
\[
\text{Percentage Increase} = \left( \frac{9.00}{50.00} \right) \times 100
\]

3. Calculate:
\[
\text{Percentage Increase} = 0.18 \times 100 = 18\%
\]

Thus, the percentage increase of the cost of the jacket is **18%**. The correct answer is **D. 18%**.